From the abstract of their article, it would appear to indicate that for "young adult females performing light office work". The comfort zone is between 24 - 26 degrees C. Air-conditioners are set in offices at around 22.5 degrees.

It is clear that the level for female workers is significantly higher than for males and if the results could be extrapolated to Australia, would indicate that cooling costs could be reduced significantly during summer, provided that males could tolerate the warmer temperatures.